Stop mechanism for talking-machines



E. 0. KLEMM. STOP MECHANISM FOR TALKING MACHINES.

APPLICAT|ON FILED DECQ23, \9|6- 1,385,689. PatentedJuly 26,1921.

* UNITED STATES PATENT ol-"ricsj EDWIN O. KLEMM, OF'SAGINAVif, MICHIGAN, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, T O- KLEMM MANUFACTURING COMPANY, OF

IGAN.

SAGIN AW, MICH- STOP MECHANISM- FOR TALKING-MACI-ITNES.

Patented July 26', 1921 Application filed December 23,1916. Serial No. 138,636.

To all whom it may concern:

Be it known that I, EnwiN OZ KLnMM, a citizen of the United States, residing at Saginaw, in the county of Saginaw and State of Michigan, have invented certain new and useful Improvements in Stop Mechanism for Talking-Machines, of which the following is a specification.

. The present invention relates to improvements in sound reproducing or talking machines commercially known as graphophones or phonographs, and in particular to automatic braking mechanism therefor, operable at a predetermined time during the travel of. the reproducer or .recorderin such manner as to stop the rotation of the usual record support. Q

vThe main characteristic features ofmy invention are the simplicity of its construction, with the resultant elimination of complicated operating parts requiringnicety of adjustment, the adaptability to well known machines at the present time on the market without special construction'thereof, and the facility of. adjustment of the device whereby it may, be caused to effect its braking function when the reproducer hasreached a a justedto automatically stop the machine when the reproducer aforesaid has reached the desired point. of the record/ To this end the invention consists of a brake member with the record support having an arm for positively actuating the brake member v said arm being automatically adjustable by the reproducer arm to preliminarily set the brake for operationat a predetermined time and sustained in inoperative brake release position by the reproducer arm until such time as the braking action is to be automatically effected through its instrumentality.

For a full understanding of the present invention, reference 'isto be had to the folprovide a device of thisarranged for cooperation.

. being adapted to contact with the lowing description and the accompanying drawing in which: Y

Figure 1 is a fragmentary plan view of a talking machine with my invention applied thereto, parts being broken away and shown in section to disclose the detail features of the device. Fig. 2 is a fragmentary sectional view showing the brake mechanism in front elevation. I

, ig. Sis an enlarged fragmentary view parts being broken away and shown in section vand looking at the brake mechanism from one side thereof.

Fig. 4 is an enlarged sectional view on the, line 4 -4; of Fig.1.. I

Throughout the following detail description and'on the several figures of the drawmg, similar. parts are referred to by like reference characters.

The sound reproducing. machine which is with a forwardly projecting'supportingarm 6 secured in any desired manner as 'most clearly-shown in Figs. 1 and 3 of the draw ing. The arm 6 obviously rotateswith the reproducer arm as the reproducer is moved by the sound groove of the sound record 7 carried by the'rotatable support 2 hereinbefore referred to.

The braking mechanism which constitutes the subject matter of this invention consists of the support or bracket 8 which is fixed to the surface of the casing 1 adjacent to the rotatable record support 2 by screws or similar fastening members 9. Rotatably mounted ,or journaled on this support is a brake member 10 which terminates at its inner endin the brake shoe 11 of any desired material such as is usually provided in braking devices of this character, said brake shoe periphery of the rotatable support when the brake is in applied position, The brake member 10 member in through the support into a spiral groove .13

formed in the surface of said brake member. I

It will be obvious that rotation of the brake one direction will cause sai brakemember to be shifted longitudinally toward the rotatable support 2 and when rotated in the other direction away from said support releasing the brake by this last mentioned operation. At the endopposite the brake shoe 11, said brake member is apertured to receive the actuating brake arm 14 and against this arm frictionally held by means of a spring 16 interposed between said washer and the sup-. port 8.. The spring is of sufficient strength to normally hold the arm 14 at adjusted positions which maybe secured automatically at hereinafter JflGSCllllBCl and also exernses sufficient pressure against this arm to prevent movement thereof except when manually actuated to obtain the preliminary adjustment above referred to. .As will be noted more particularly by reference to Fig l, the arm 14 at one end has connected thereto a blade 17 fixed by meansof the connecting members-or rivets 1S and the lower edge thereof is provided with a notch or recess 19 which is adapted to receive the supporting arm 6 carried by the reproducer arm 4:.

I wish it to be understood that I do not desire to beconfined to the particular. formation of the end portion of the arm 14 above described as this may without departing in any way. from the function which is performed by this element,it being, however, desirable that'that end of the arm hould be of sufficient weight to cause a tendency of the arm to gravitate and in so doing actuate the brake member 10' rotatably upon its support.

Describing the operation of this brakemechanism which, it will be obvious, is extrcmcly simple in construction a preliminary adjustment is first obtained which determines the point of application of the brake to the rotatable support 2 by the operator. Assuming, for instance, that the brake is to bcapplied to stop the turntable 2 when the end of the sound groove is reached the reproducer arm with its supporting arm 6 engaged in the notch 19 of the actuating arm 14 is moved inwardly until the stylus .of the reproducer rests substantially at the end portion of the sound groove of the record, thus carrying the arm 14; longitudinally therewith. This represents the preliminary adjustment above referred to and the brake will be operated at this point in the subsequent travel of the repro-v ducer arm in the playing of the record. Olaviously the operator may makethesame ada washer. 15 is.

readily be, changed may be desired justment so that the brake will be; applied when only a portion of the record has been played, in which event the reproducer is preliminarily positioned at the'end of that portion of the sound record which is to be reproduced. The operator now'pressesdownwardly upon the free endof the arm 14: rocking the brake member 10 which isv withdrawn fromveontactwith the record support 2 by the coaction of the screw 12 and the spiral groove 13 into whichit extends. he reproducer arm is now swung outwardly into the dotted line position shown in Fig. 1 where the stylus may initial portion of record; 'R-elea 'ng pressure on the operating arm 14k the opposite extremity which has been freed from the v rest on the surface of said supporting arm in frictional contact therewith. Thereproducer arm in the course of the reproduction travels toward rives at the notch 19 of theoperating arm 14; whereupon the latter wardly until said arm is engaged in said the sound groove .of the supporting arm 6 will will gravitatQQdOWn-T be rested upon the the full line :position'shown V in Fig. 1Juntil' the supporting arm 6 ar notch and in" so gravitating the brake memjustment of the brake mechanism is obtained automatically when there is established an interlocking connection between the brake member and the reproducer arm which is manually operated for this purpose. the braking action being finally automatic to stop the record support at the p'oint'predetermined by the preliminary} adjustment above referredto. 5 Changes may readily be made in thc details of construction of the respective parts of this device without in any way departing from the spiritof the invention and within thescope of the claims hereto appen-dedff Having thus described myinventi'on what I claim as new is: I 1. In a device ofthe classcescribed the combination with a rotatable member and atraveling member movable relative thereto, of brake mechanism arranged. to cooperate with the rotatable member to stop rotation thereof, and cooperating parts between the traveling member and brake mechanism. including an actuating member adapted to .hold the brake in operative position; said the rotation ofythe latter. Itpfol brake and through its" supporting arm movement.

member'is adapted to coact to member being adjustable by the traveling member for effecting actuation of the brake sooner or, later in the travel of said member.

2. In a device of the class described, the combination with a rotatable member and a traveling member movable relative thereto, of brakemechanism arranged to cooperate with the rotatable member and including an operating member with which the traveling effect brake action at a predetermined time, said operating'member normally tending to render the brakemechanism active, a part movable with the traveling member and adapted for rendering the brake inoperative until the desired point-in thetravel of. the traveling member isreached, saidop'erating member being preliminarily adjustable "incident to movement of theftraveling member to detel-mine. said desired point.

' 8. In a device of the class described, the combination'with a rotatable member and a traveling member movablerelative'thereto, ofbrake mechanism arranged to cooperate with the rotatable member and including an operatingmember with which the traveling member is adaptedto coactto eflect brake action. at a predeterminedtime, said operating member being sustained by the traveling member in position rendering the brake inoperative until the desired point in the travel ofthe traveling'member is reached, said operating member being adjustable by movement of the travelingmember prelim]? nary to the commencement ofit's traveling 4. Ina device of the'class described,the combination with a rotatable member and a. traveling member movable relative thereto, of a brake mechanism comprising an actuat ing member carried by. the brake and automaticallyadjustableby the traveling membcr,"said actuating member being held in inoperative position efi'ecting release of the brakeby the traveling memberand automatically operable to effect-brake action under control of the traveling member.

5 In a device of the classdescribed, the

combination with a rotative record support and a traveling member'movable relative thereto, of brake mechanism for the record support, and cooperatingmeans between the traveling member'and. the brake mechanism to control the latter, comprising relatively movableparts respectively conn'ected to the traveling memberand brake mechanism,

oneof said parts being adjustably carried,

and said parts being adapted to interlock at a certain portion of their relative movement, so that'a fixed relation of the parts may be had during certain movement of the traveling member for presetting ,operationin respect to brake operation.

6. In a device of the class described, the combination with a rotatable member and a traveling member movable relative thereto, of brake mechanism comprising a brake member and operating means therefor cooperative with the traveling member to hold the brake in inoperative position, said means combination with a rotatable member and a traveling member movable relative there to, of brake mechanism comprising a brake member, a support in which said brake member is rotatably mounted, an arm connected to the brake member forrotating the same, means for'shifting the brake member longitudinally upon rotation thereofasaid. arm being manually operable for releasing the brake member, and means coacting with the armto hold the brake member in such release position until the traveling member has reached a predetermined point in its travel. I f I 9. In a device of'the class described, the combination with a rotatable member and a traveling member movable relative there to, of brake mechanism comprising a brake member, a support in which said brake member is rotatably mounted, an arm connected to the brake member for rotating the same, means for shifting the brake membe longitudinally upon rotation thereof, said arm being manually operable for releasing the brake member, and a support carried by said traveling member for holding the brake member in such release position until the traveling member has'reached a predetermined point in its travel. I 10. In a'device of the class described, the combinationwith a rotatable member and a traveling membermovable relative thereto, of brake mechanism comprising a brake member, a support therefor, an arms shiftably carried by said brake member and having a notch therein, a support carried by the traveling member on which said arm rests during the traveling thereof, said support being adapted to be received'in the notch aforesaid to permit operation of the brake member at a predetermined point "in the travel of the traveling member.

.11. In a device of the class described, the combination with a rotatableimember and a traveling member movable relative thereto, of brake mechanism comprising a brake member having a notched operating arm,

means on said traveling member engageable 1n the notch to effect relative ad ustment of the arm and said means for predeterminmg the point I in the travel of the. traveling member for operation of the brake member,

said means sustaining the arm and holding the brake in released position during travel of the traveling member until the point aforesaid is reached, said sustaining means 7 being thereupon receivable in the notch to combination wit permit the arm togravitate and effect brake action of the brake member.

12. In a device of the'class described, the a rotatable member and a traveling member movable relative thereto, of brake mechanism comprising a brake member, means for shifting said brake member toward or from the rotatable member to jefi'eetbrakeor release aetions with respect to the rotatable member, ,a

movable memberon which said shifting means is supported during rotation of the rotatable member, said shifting means being constructe .1 to drop automatically at a predetermined time during movement of the movable mem ber to thereby stop tatable member. 1

13. In a device of the class described, the combination with a rotatable memberr and a the rotation, of the re traveling .member movable relative thereto,

of brake mechanism comprising a brake member, a support therefor, operating means for said brake member shiftably carried thereby, means mounted on said brake member for holding the operating means at ad justed positions, and means operable with the traveling member and adapted to coact with the operating means to effect adjustment thereof upon manual movement of the I ried by said brake member for rotating the same, a supporting arm extending from the traveling member on which said brake arm is sustained to normally hold the brake member released during travel of the traveling member, the brake arm being provided with a notch vfor receiving the supporting arm at a predetermined point in the movement of the traveling member whereby to effect brake action, said brake arm and supporting arm coacting therewith constituting an interlocking connection for obtaining preliminary adjustment of the brake member mitted to stop the ess e through the instrumentality of the traveling member.

15. In a device of the class described, the

combination with a rotative record support and a traveling member movable relative thereto, of brake mechanism for the record support, and cooperating means to control the latter, comprising relatively movable parts respectively connected to the traveling member and brake mechanism,said parts having two consisting ofcontact the brake mechanism is maintained unapplied while the traveling member moves, and

the other such that the said contact is d1scontinued so as to permitfiapplieation of the brake mechanism support.@- k

v 16. A device as claimed inclaim 15, wherein the second interaction of the particularly describedparts consists of interlocking of said parts so they remain ina relatively fixed relation-during .adjustmentof. one. of them on movement of the traveling member for the pur ose describeda r I A device as kinds of interaction, one between them such that claimed in claim 15,

p 7 between the traveling member and the brake'mechanism El) i to coact with the record wherein the second interactiontof the particularly described parts locking ,of certain point in thetravel-of the traveling member, whereby ,applic ation is effected, and whereby said parts remain relatively fixed while one ofthem is'adjusted relative to and upon'manual; movement 0 the traveling member. i V

18. In a .deviceof the class described, the combination with a-rotative record support and a traveling membermovable relative thereto, of brake mechanism for the record support, and cooperating means betweenjthe traveling member andthe brake mechanism tocontrol the latter, comprisinga part connected with the brake .mechanism, connected with the traveling member, said parts being relatively moving horizontally below and in contact with the second-part to .keepthe brakemechanism inactive, the partsadapted to interlock by relative vertical movement .at a predeterminedpointin their -.movement in contact with one another so as" toQper'mit the brake.

mechanism to actonthe record support and consists ofintersaid parts automatically at a p of the brake mechanism to coactwith the. record support adjustable, and one 7 a part soas to cause thesaid parts to becomerelatively fixed, one of said parts being so sup.

ported that it is upon manual movement susceptible of adjustment of the traveling member to obtain presettin'g of the time;

when the brake mechanism will be perrecord support. V 19. In a device of the class described, the combination with a rotative record support and a traveling member movable relative thereto, of brake mechanism for the record support, and cooperating means between the traveling member and the brake mechanism to control the latter, comprising relatively movable parts respectively connected to the traveling member and brake mechanism, one part being notched at a certain point on its underside, the other arranged to travel horizontally on the unnotched portion of said first part and then automatically enter the notch to become temporarily fixed relative to the notched part and one part being adjustable incident to the movement of the traveling member When the fixed relation of the parts is established. v

In testimony whereof I aifix my signature EDWIN O. KLEMM. 

